Malicious PDF — malware analysis report

Static analysis result for SHA-256 120809d7d696f49f…

MALICIOUS

PDF

41.5 KB Created: 2021-06-21 10:32:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 19cd85b14bea9de75d2d5f79465322fb SHA-1: 88edd8efc959f89759196e6019a3f507fb4e438a SHA-256: 120809d7d696f49f45bc7d79dc2c1dad69c3ca6b5293defc7e3db9e1045c7d31
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document is identified as malicious by ClamAV and a machine learning classifier. It functions as a phishing lure, presenting an image-based interface that conceals numerous links to external websites, many of which appear to be compromised WordPress uploads. The document body contains text related to a search query, suggesting it's designed to attract users searching for specific content, likely leading them to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7468

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 41 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://chcial.ru/uplcv?utm_term=sahih+namaz+shikkha+in+bangla+pdf+free+download PDF link annotation
    • http://www.rolstoellift.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c42bfe39c5b---68831800236.pdfIn PDF document text
    • https://regalcabs.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16079dfcc739b5---22010318519.pdfIn PDF document text
    • http://www.aqsclimited.com/EditorImages/file/fomexefejexixujudivikemu.pdfIn PDF document text
    • http://abwlargo.com/uploads/files/lofavopeguzigitatimizomos.pdfIn PDF document text
    • http://n-production.com/upload/fckeditor/file/xebodewiwoxozabelupivoge.pdfIn PDF document text
    • https://decoveinvestment.com/userfiles/file/49992423059.pdfIn PDF document text
    • http://dancedynamicsla.com/clients/38740/File/1247916802.pdfIn PDF document text
    • https://flyingfish-stay.com/userfiles/file/duzagozemejinab.pdfIn PDF document text
    • https://mollis.rs//files/fugegobe.pdfIn PDF document text
    • http://www.sempresaude.net/wp-content/plugins/formcraft/file-upload/server/content/files/160a5ea83cbda4---dexerigasamikoveve.pdfIn PDF document text
    • https://landlorddebtadvisory.com/wp-content/plugins/super-forms/uploads/php/files/csu93usr3t91uoif9sbbcq0l52/96399140590.pdfIn PDF document text
    • http://aberdeeneyes.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1606cc61b9127e---35439486600.pdfIn PDF document text
    • http://www.anieliasfx.com/uploads/textareas/file/15735565817.pdfIn PDF document text
    • http://naasschoolofmotoring.com/fckeditor/userfiles/file/vodalolamelageke.pdfIn PDF document text
    • http://bilagroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e89622b4cc---vizenimilibuzurakufigijiv.pdfIn PDF document text
    • http://activesolutionelectric.com/images/file/vesujedetitu.pdfIn PDF document text
    • https://christembassybarking.org/wp-content/plugins/super-forms/uploads/php/files/972a1bffe2ecf50cc30b36773165e7c5/75682241409.pdfIn PDF document text
    • https://mabuksusu.com/contents//files/busijamemarajuguj.pdfIn PDF document text

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